package com.example.demo.support;

import com.fasterxml.jackson.core.JacksonException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import org.joda.money.CurrencyUnit;
import org.joda.money.Money;
import org.springframework.boot.jackson.JsonComponent;

import java.io.IOException;
import java.math.BigDecimal;
//告诉jackson
//json -> money
@JsonComponent
public class MoneyDeserializer extends StdDeserializer<Money> {

    protected MoneyDeserializer(){
        super(Money.class);
    }
    @Override
    public Money deserialize(JsonParser jsonParser,
                              DeserializationContext deserializationContext)
            throws IOException, JacksonException {
        // USD 8.00 -> 美元的8元
        String strValue = jsonParser.getValueAsString();
//        BigDecimal numberValue = jsonParser.getDecimalValue();
        return Money.of(CurrencyUnit.of("CNY"), Double.parseDouble(strValue));
    }
}
